package com.dang.alex.util;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;

public final class ImageUtil {
	private static final String[] chars = {"0","1","2","3","4","5","6","7","8","9"
			,"A","B","C","D","E","F","G","H","I","J","K","L","M","N","P"};
	private static final int SIZE = 5; 
	private static final int LINES = 7;
	private static final int WIDTH = 100;
	private static final int HEIGHT = 50;
	private static final int FONT_SIZE = 30;
	
	public static Map<String,BufferedImage> createImage(){
		StringBuffer sb = new StringBuffer();
		BufferedImage image = new BufferedImage(WIDTH,HEIGHT,BufferedImage.TYPE_INT_RGB);
		Graphics graphics = image.getGraphics();
		graphics.setColor(Color.LIGHT_GRAY);
		graphics.fillRect(0, 0, WIDTH, HEIGHT);
		Random ran = new Random();
		
		for(int i =1;i<=SIZE;i++) {
			int r = ran.nextInt(chars.length);
			graphics.setColor(getRandomColor());
			graphics.setFont(new Font(null,Font.BOLD+Font.ITALIC,FONT_SIZE));
			graphics.drawString(chars[r], (i-1)*WIDTH/SIZE, HEIGHT/2);
			sb.append(chars[r]);
		}
		
		for(int i =1;i<LINES;i++) {
			graphics.setColor(getRandomColor());
			graphics.drawLine(ran.nextInt(WIDTH), ran.nextInt(HEIGHT), ran.nextInt(WIDTH), ran.nextInt(HEIGHT));
		}
		Map<String,BufferedImage> map = new HashMap<String,BufferedImage>();
		map.put(sb.toString(), image);
		return map;
	}
	public static Color getRandomColor() {
		Random ran = new Random();
		Color color = new Color(ran.nextInt(156),ran.nextInt(156),ran.nextInt(156));
		return color;
	}
}
